gregg



3 Sheets-Sheet 1. M. E. GREGG.

MAGAZINE GUN.

4(No Model.)

n m adm H 1, ma m V H now W M An D m M MIM W/T/VESSES: 9

(No Model.) 3 Sheets-Sheet 2. M. E. GREGG.

MAGAZINE GUN.

vPaxtented Deo. 7.71886.

A TTOH/VEY (No Model.) 3 Sheets-Sheet 3.

M. E. GREGG.

MAGAZINE GUN.

Patented Dec. 7, 1886.

UNTTED STATES PATENT OFFICE-,

MYRON E. GREGG, OF VASHINGTON, DISTRICT OF COLUMBIA.

MAGAZINE-GUN.

SPECIFICATION forming part of Letters Patent No. 353,676, dated December7,1886.

(No model.)

To all whom it may concern.-

Be it known that I, MYRON E. GREGG, a citizen of the United States,residing at Washington, in the District of Columbia, have invented/certain new and useful Improvements in Magazine-Guns; and I do declarethe following to be a full, clear, and exact description of theinvention, suchy as willenable others skilled in the art to which itappertains to make and hse the same, reference being had to theaccompanying drawings, and to the .letters and figures of referencemarked thereon, which form a part of this specication.

My invention relates to an improvement in breech-loading magazineguns inwhich the mechanism is operated by a handle located beneath the barrelforward of the receiver, and arranged to slide parallel with the barrelindependent of the magazine; and it consists in providing areciprocating cylinder adapted to automatically receive and carry thecartridge from the magazine to thebarrel, Where it is discharged, andtoeject the empty shell; also in certain other details of constructionand arrangement, hereinafter more specifically described, and pointedout in the accompanying drawings, in which- Figure l is a verticallongitudinal section of my gun, showing the several parts with thecartridge in position to be discharged. Fig. 2 is a verticallongitudinal section, representing the position of the parts after thecartridge has been exploded and the shell withdrawn from the barrel intothe cylinder. Fig. 3 is a vertical longitudinal section, representingthe position of the parts when the cylinder has been reversed for thepurpose of ejeeting the shell and depositing another cartridge inposition for insertion into the barrel. Fig. 4 is a rear elevation, inperspective, of the inner end of the gun-barrel and breechblock, showingthe slide by means of which the cylinder and other mechanism areactuated and the manner of its attachment to the handle. Fig. 5 is avertical cross section through the line x x of Fig. l. Fig. 6 is a Viewof the rear portion of the slide inverted. Fig. 7 is a detail view ofthe button or stop pivoted at the rear of the magazine and designed toregulate the delivery of cartridges into the cylinder. Fig. 8 is aninverted section of the barrel, showing the magazine and guide-rodssupporting the handle by which the slide is actuated. Fig. 9 is aperspective view of the cylinder, showing the cartridge andshell'chambers. a front elevation of same, showing the camgroves on itsexterior surface, the purpose of which will be explained hereinafter.Fig. 11 is a device which serves the purpose of pushing the cartridgeforward through and out of the cylinder-chamber into the barrel, and ofextracting the shell by means of the pawl or hook pivoted in its outerend, also of raising the hammer. Fig. 12 is a rear elevation, inperspective, of the spool-barrel, consisting of a hollow cylinderdesigned to be located in rear of the receiver or cartridge-cylinder,and Fig. 13 is a front elevation of same in perspective. Fig. 14represents the spool surrounded by Va coiled spring and designed to beplaced within the spool-barrel. Fig. 15 is a detail View of a catch baror slide designed to fit a longitudinal recess in the top ofthespoolbarrel and form a continuation of the firingp A represents theexterior shell or casing of the breech incl osing the mechanism, and Bthe barrel of the gun, provided with a magazine, Z, beneath, in theusual form.

S is the handle locatedA beneath the barrel, over the magazine, andsupported by guiderods k, secured on each side of the magazine, and bymeans of which the handle is permitted to slide freely backward andforward. To the upper edges of this handle are secured the legs or endsof the bifurcated slide R, as shown in Fig. 4.

C is the reciprocating cylinder, located immediately in rear of thebarrel and centrally pivoted thereto, or to the breech-block, by aprojecting stud, a, fitting into a corresponding recess, a', in. thelower portion of the barrel or breech-block. The opposite end of thiscylinder is provided with a square shank, b, projecting within acorresponding-shaped opening in the spool D, which islocatedwithin-thespool-barrel E in rear of the cylinder and within the casing A. Thespool D is journaled within the spoolbarrel by means 'of shoulders orprojections O, resting within bearings in the end walls, as shown inFigs. l, 2, and 8, and thus permitted to rotate freely, except aslimited by the coiled spring g, surrounding same and its stop. The outerend Fig. 10 is of the spool next to the cylinder is provided with asemicircular flange, s, (shown in Fig. 14,) and which occupies aposition within the barrel next to the outer end wall. The outer orfront end wall of the spool-barrel is formed integral with the barreland located slightly within it, thusforming a recess, Q, as shown inFig. 13. The opposite or rear end wall consists ofa cap, T, fitted tothe spool-barrel, as shown in Fig. 12.

In the top of the spool-barrel is alongitudinal slot or opening, H, forthe reception ofthe slide or catch bar,F. (Shown in Fig. 15.) The sidesof this opening are connected at its inner end by a transverse piece, c.'Ihe inner end of the catch-bar F is pronged or slotted horizontally toiit and inclose this transverse piece, and its opposite end is bentdownward and outward, in the form of a crank or elbow, near the pointwhere it rests upon the outer end wall of the spool-barrel, it beingthereby adapted to slide freely back ward and forward in thelongitudinal slot H, its backward movement being limited and arrested byits interior shoulder, f, which comes in contact with the transversepiece c when its outer end is flush with the outer end wall of thespool-barrel. Its forward movement is regulated by means of .a verticalspring, V, one end of which engages with a transverse slot or recess onthe f under side of its lower prong, the opposite end ofthe spring beingsecured by a screw at or near the bottom of the spool barrel. Thespoolrbarrel is also provided with longitudinal recesses h on each side,for the passage of the cam pins or studs U, located in theunderside ofthe slide R. (Shown in Fig. 6.)

The cylinder C is provided with a longi tidinal shell-chamber, d, on oneside, and a similar cartridge-chamber, d, on the opposite side, as shownat Fig. 9. Its exterior face is provided with double earn-grooves e e',and its inner end with a shoulder or projection surrounding its shankI), of suitable dimensions to lit within the recess Q of thespool-barrel when in position. A firing-pin of the usual form andconstruction occupies a longitudinal opening at one side of its center,the end of which is shouldered to correspond with the shoulder orprojection, of which it forms a part, at the inner end of the cylinder.

The button or stop N (shown at Fig. 7) for regulatingfthe delivery ofcartridges from the magazine into the reeeivingcylinder and pivoted nearthe mouth of the magazineopening, where it is normally held in place bya small leaf-spring, t, is nearly triangular in shape, and provided witha curved finger, a, at its lower point, projecting from its outer faceover the end of the cartridge and preventing its escape from themagazine. It is also provided at its upper inner point with an arm, n',projecting from its inner face to the edge of the magazineopening, butnotover it when held in its normal position by the spring t, as shown inFig. 4.

The handle S is semi-cylindrical in form,

open at the top, extends around the magazine, and is supported upon twoguiderods, la k, located on either side and secured by a segment orband, Z, at one end and by projecting into the breech-block m at theopposite end, as shown in Figs. 4 and 6.

The slide R consists of a bifurcated metallic piece, the closed end ofwhich passes within the casing A, over the cylinder and spoolbarrel, thestuds or cam-pins U on its under side traversing the ean1-grooves 0 o ofthe cylinder and recesses h ot' the spool-barrel, the legs or prongs ofits opposite or open end being securely attached to the handle S on eachside of the barrel. These legs or prongs pass through and are guided byrecesses provided in the, sides of the breech-block. -The rear closedportion of the slide is recessed or cut away on its upperr side to admitof its passage beneath longitudinal ribs r, projecting downward from theinterior of the top ofcasing A, as shown in section in Fig. 5. Theselongitudinal ribs are rigidly secured to the interior of the casing A,or may be formed integral with it, and are located at a sufficientdistance apart to leave a slot or recess between them, within which isplaced the breech-rod or carrier-arm XV, (see Fig. 5,) shown at Fig. 11,and which consists of a rod somewhatlonger than either the cylinder orspool-barrel, but not equal in length to both. It is cut away orrecessed on its under side, near theinner end, for a short distance,whereby it is adapted to tit over and inclose within such recess thetransverse portion of the slide It, as shown in Figs. 1, 2, and 8. Itsopposite end is provided with avertieal mortise or recess, within whichis pivotedarctractor-hoolew. (Shownindetail at Fig. 11.) This outer endis also formed with double shoulders J J on its under side and an upwardprojection, K, extending over the hook or retractor w, which is beveledinwardly and outwardly and made to slant inward toward the shoulders JJ. Therear end of the pawl or retractor hook w extends slightly back ofshoulder J when in position, and is provided with a notch which forms aprojecting shoulder or end t' on its lower corner. rIhis hook, whenpivoted within t-he rod IV, is held in'its normal position by aleafspring, p, secured to the top of the rod and extending into themortise over the hook, as shown in Fig. 11. The casingAconsistsofasingle pieccofmetal, having an eccentric longitudinalopening corsponding in shape with that shown in Fig. 5, and formed bytwo borings from different centers, the lower portion of this openingforming the recess for the reception of the spool-barrel and'cylinder,the upper portion affording a space for the movement of the slide andearricr-arrn within it, and of the longitudinal ribs r above thecylinder and spool-barrel.

Having now described all the parts in detail, I will proceed to describethe mode of operating my gun when the parts are assembled and in theirproper positions.

We will presume the handle S to be drawn IOC IZO

back against the breech-block m. The inner end of the slide R, beingforced back to its utmost limit, occupies a position within the casingover the spool-barrel, the cam-pins U resting in the grooves h. Theshell-chamber d is then presented at the opening O' beneath, on a linewith the magazine and the cartridge-chamber d in rear of the barrel. Itisnow in position to load the magazine, which is then lled withcartridges. The handle is then moved for- Ward, when the cam-pins U ofthe slide reach and engage the groovese inthe cylinder, callsing it toperform a quarter-revolution, bringing it to the position shown in Fig.5, with the chambers empty. Meantime the cam-pins have reached theirutmost limit in the front end of the cylinder, the closed end of theslide beingin contact with the breech-block m. The

Vcylinder is held in this position by the end of the.catchbar F, whichnow projects into the recess occupied by the firing-pin, and preventsthe cylinder` from turning backward when the pressure of the cam-pins isrelieved. The handle is then moved back, causing the end of thecatch-bar to rise out of the recess upon aninclined track on itsopposite side and the carnpins lo traverse the cam-grooves e', causing afurther quarter-revolution of the cylinder, until the chamber d isbrought on a line with the magazine and thev shell-chamber d in rear ofthe barrel, where the cylinder is again arrested and held by the end ofthe catch-bar F, whichhasslippedinto the recessu of the shoulder at therear of the shell-chamber. At this point the stud s on the periphery ofthe outer end of the cylinder comes in contact with the prajection s2 ofthe upper outer corner of the button or stop N at the mouth of themagazine, and turns it sufficiently to throw the iinger n away from themouth and release t-he cartridge, allowing it to be forced out intochamber d of the cylinder by the magazine- Miring. At thesame time thearm n' of the button is forced inward behind the flange of thecartridge, and'serves to arrest the next one until the finger n iscarried back to its place by the spring'Y t. The continued backwardmovement of the slide R brings its transverse piece in contact with therear shoulder of the recess on the under side ofthe breech-rod orcarrier-arm W, and forces it back until its inner end, by contact withthe hammer, cocks the gun, aud its shoulder J', near its forward end,comes Yin contact with the shoulder L of catch-bar F, forcing it backout of the recess u in the rear of the shell-chamber d, thus releasingthe cylinder, which then instantly performs a half-revolution backwardbythe force of the spring operating upon its shank through the' mediumof the spool D, bringing the cartridge-chamber, now containing thecartridge, again in rear of the barrel. The handle is now again movedforward, causing the transverse piece at the rear end ofthe slide, bycontact with the front shoulder of the recess on the under side of thebreech-rod, to

push the cartridge through and out of chamber d' into the barrel, whenthe slanting or beveled end of the rod comes in contact with theinclined end of the barrel and lifts the rod or causes it to rise out ofthe chamber, and its front recess-shoulder is also released or liftedfrom the transverse piece at the outer end of the slide. The continuedforward movement of the slide again brings the cam-pins through thegrooves e, causing the cylinder to perform a quarter-revolution to theright, and again briugi-ng it to the position shown in Fig. 5,

with `the end of the catch-barF in contact with the firing-pin andprojecting into its recess. The gun is now discharged; then the slideforced backward, as before, bringing the shell-chamber d rear of thebarrel to receive the shell, and the chamber d' in rear of the magazineto receive another cartridge. At this point the transverse piece in theslide again comes in contact with the rear shoulder of the recess on theunder side of the breechrod, draws it backward, its outer end slides andis forced down the inclined end of the barrel, and its retractor wgrasps the fiange of the shell and withdraws it into the cylinder, asshown in Fig. 2, until its projecting corner z' comes in contact withthe shoulder L of the catch-bar, causing it to rise out of the way ofthe cylinder and release the shell, immediate] y after which theshoulder J of the breechrod or carrier-arm comes in contact with theshoulder Lof the catch-bar F, forcing it back and again tripping thecylinder, which instantly flies back to a reversed posit-ion, ejectingtheshell through the opening O' and conveying another cartridge to thebarrel, as shown in Fig. 3, when the same operation may be repeateduntil the magazine is emptied.

It will be observed that I have provided two cam-pins on the under sideof the slide-- one of which occupies a position in advance of theother-and that the cani-grooves in the surface of the cylinder areformed to correspond with the positions of the pins. The object of thisarrangement is to provide'at all times a bearing-surface for one of thepins, while the other is traversing t-he s pace occu- 'pied by thecartridge or shell chambers and intersections of the grooves, andthereby conipensate for the necessary breaks and interruptions in thecam-grooves. It will also be Iii() observed that the catch-bar F servesasastop when the cylinder is tripped or reversed, the end of thesemicircular flange s bearing against its right side when thecartridge-chamber is on a line with the barrel, and the opposite end ofthis flange bearing against ils left side when the shell-chamber isuppermost.

When necessary for convenience in transportation, the barrel of my gunmay be readily unshipped by first moving the slide 1t back to its utmostlimit, then removing a transverse pin passing through the casing andbreechblock,and withdrawing two or `more screws securing it thereto.

cart-ridge and the shell, as set forth.

2. In a magazine-gun, an oscillating cylinder located in the rear of thebarrel and centrally pivoted thereto, said cylinder having ashell-chamber on one side and a firing-pin at one side of it's centerand actuated in one direction to receive the h:iit1i(lge and shell byearn-pins reciprocatcd by an operating-handle and reversed by thecoil-spring D to eject the shell and bring the cartridge to the chamberof the barrel, substantially as and for the purpose rset forth.

`3. In a magazine-gun. the co1nbination,with the movable handle, of acarrier-cylinder and a slide for actuating the same by intermediate pinand cam-groove connections, said slide being moved by the handle andsecured thereto by prongs passing through guide-recesses in thebreech-frame, as set forth.

4. In a magazine-gun, the coinbinatiomwith the movable handle, thecarrier-cylinder,and the carrier-arm, of a bifurcated slide whichactuatesthe cylinder, said slide having a transverse piece at its rearend to engage with a recess on the under side of the carrier-arm,whereby the carrier-arm is moved by said slide, as set forth.

5. In amagazine-gun, the combination,with the movable handle andcarrier-cylinder, of a slide which actuates said cylinder, the closedend of said slide passing within the easing, the open end having prongssecured to the handle on each side of the barrel, whereby/the slide isoperated by the handle, as set forth.

6. In a magazine-gun, the combination,with the oscillating cylinder anda reciprocating slide operating the same through intervening cam-pins,of the spool barrel fitting within and secured to the casing and havinga spool jonrnaled in its end wall, said spoolreceiving the shank of thecylinder through its center and operating through the intervention ofthe spring to reverse the action of the cani-pins on thecarrier-cylinder, as set forth.

7. 'In a magazinegun, the combination, with the oscillating cylinder anda slide operating the same through intervening cams, of thespool-barrel, a spool centrally journaled therein and provided with asquare shank entering its center, the cylinder having a coil-springsurrounding the spool and bearing in an opposite direction to the actionof the cam-pins, said spool and cylinder being limited in their actionby a lug of the spool coming in contact with the side ofa catch-barborne by said spoolbarrel at a point in the rotation of the cylinderwhich brings the cartridge-chamber in line with the barrel of the gun,as set forth.

8. In a magazine-gun, the combination, with the oscillating cylinder anda spool-barrel provided with an upper longitudinal slot, of acatch-barsliding in said slot, the inner end inclosing a transversepiece in the rear wall of the spool-barrel, the opposite end resting onthe outer wall thereof, the forWard-and-backward movement of saidcatch-bar in said slot acting to hold and release the cylinder, as setforth.

9. In a magazine-gun, the combination, with the oscillating cylinder,the spool-barrel, the slide, and carrier-arm, of a shell or casingconsisting of a single piece of metal having two borings forming aneccentric longitudinal opening, whereby recesses are provided for themovement of the oscillating cylinder, slide, and carrier-arm,andprovided with a single opening atthe bottom of the casing for receivingthe cartridges and ejecting the cartridgeshells, as set forth.

10. In a magazipe-gun, the oscillating cylinder provided withcani-grooves on its outer face and a cartridge and a shell chamber onopposite sides` in combination with the bifurcated slide, the prongs ofwhich are secured to the handle, and its closed end provided withcam-pins which fit thecam grooves of the cylinder, and so placed withrelation to each other that a bearing-surface is constantlyaiiorded forone pi n while the other is traversing a break in the groove, as setforth.

11. In a magazine-gun, the oscillating cylinder provided at oppositesides with a shellchamber and a cartridge-chamber, and having a squareshank, in combination with the slide, and the spool-barrel having thespool journaled therein provided with an opening to receive the shankand connecting with a coiled spring surrounding same, substantially asand for the purpose set forth.

l2; The combination, in a magazine-gun, of

and a cartridge chamber and with cam-grooves in its outer face, thebifurcated slide having cam-pins on its inner closed end adapted to fitthe cam-grooves of the cylinder, the handle secured to the prongs of theslide and located beneath the barrel, and the spool secured to thecoiled spring and journaled within the spool-barrel, substantially asand for the purpose set forth. Y

18. In a magazine-gun, the combination, with the semi-cylindricalhandle, open at the top and extending below the magazine, of the breechframe, and the handle supporting guide-rods located on either side ofthe magazine, said rods secured atone end to lugs on the barrel, theopposite end projecting into the breech-frame, as set forth.

14. The combination, in a magazine-gun, of the oscillating cylinder, thespool-barrel having the spool journaled therein within the casing, withits controlling spring, and the movthe oscillating cylinder providedwith a shell ICO IIO

able catch-bar in the top of the spool-barrel acting to release thecylinder after the shell is withdrawn from the barrel by contact withthe carrierar1n at its extreme backward limit, 5 thus ejecting the shellfrom the casing, as set forth.

15. The combination, in a magazine-gun, with an actuating handle andslide, of the oscillating cylinder provided with a shell-chamberand acartridge-chamber on opposite sides, and the inclosing-easing having anopening on its under side adapted to discharge the shell, substantiallyas and for the purpose set forth.

16. The combination, in a magazinegun, of the chambered cylinder, thebifurcated operating-slide having its arms connected by a transversepiece at their inner end, and the breechrod which reciprocates throughthe cylinder, having a recess on the under side of its inner end whichfits over and incloses the-transverse piece of the slide, anda slant orbevel at its outer end which bears upon the incline at the rear of thebarrel and lifts the rod at its forward position, substantially as andfor the purpose set forth.

17. The combination, in a beeech-loading gun, of the oscillatingcylinder, the tiring-pin projecting through the same, the carrier-armhaving a forward bevel thereon, which, com ing in contact with theincline on the rear of the barrel, lifts the arm in its forwardmovement, and a bevel on the top thereof serving in its backwardmovement, by engagement with the frame, to bring its forward end down,35 the retractor-hook in the forward end of the carricr-arm, and thebifurcated slide, wherebythe earricr-arm is reciproeated through thecylinder, substantially as and for the purpose described. A

18. The combination, in a magazine-gun, of the button pivoted at themouth of the magazine, provided at its lower point with acingerprojecting from its outer face, and at its upper point with an armprojecting from its inner face, and the oscillating cylinder having aprojecting Stud on e periphery of its outer end which rotates t e buttonby contact with it, substantially as and for the purpose set forth.

19.` The combination, in a magazine-gun, of the reciprocating cylinderhaving a square shank, and provided on opposite sides with acartridge-chamber and a shell-chamber, and with cam-grooves on its outerface, the spoolbarrel having journaled therein the spool secured to andcontrolled by the spiral spring 55 surrounding the same, the catch-barand its controlling-spring, the breech-rod provided with a recess on itsunder side, and a retractorhook pivoted in its outer end, and thebifurcated slide having a transverse piece and cam- 6o pins at its innerend which tit and slide in the cam-grooves of the oscillating cylinder,and its outer pronged ends secured to the handle, substantially as andfor the purpose set forth.

In testimony whereof 1 aflix my signature in 65 presence of twowitnesses.

MYRON E. GREGG.

Witnesses:

EMMA M. GILLETT, W. H. EDGAR.

